Tech Briefs Magazine - December 2022 - 14

Five Tips
for Optimizing
5G Private
Network Signals
I
n the coming years, the wireless
communications segment will expand
significantly as 5G private
networks launch. Private networks
will take advantage of higher frequency
and wider bandwidth applications
in frequency ranges (FR) 1 and FR2,
all the way to the millimeter-wave
(mmWave) band. Testing at higher
frequencies is complicated due to the
range of frequencies, bandwidths, and
deployment modes that devices and
networks support.
In conjunction with 5G new radio
(NR), private base stations (BS) can
support connectivity for different
spectrum bands (sub-GHz, 1 to 6 GHz,
or mmWave). The 5G base station
products must pass all the test requirements
prior to their release. Otherwise,
the products are not 3GPP compatible
or appropriate to implement
in a network. It is critical to thoroughly
understand testing challenges and
14
select testing devices that can provide
robust performance to ensure base station
transmitters in the network
perform to standards.
At higher frequencies such as
mmWave and wider bandwidths,
signal quality is more susceptible
to impairments. To characterize
and test the true performance of
5G products, designers and manufacturers
need to address testing challenges in
these situations. Error vector magnitude
(EVM) measurements can offer powerful
insight into the performance of a digital
communication base station transmitter.
In fact, EVM measurements can detect
any flaw affecting the magnitude and
phase trajectory of a signal, regardless of
the modulation format.
Using EVM to Characterize
Private Network Signal Quality
The 3GPP standard defines the radio
frequency (RF) conformance test
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Tech Briefs Magazine - December 2022

Table of Contents for the Digital Edition of Tech Briefs Magazine - December 2022

Tech Briefs Magazine - December 2022 - Intro
Tech Briefs Magazine - December 2022 - Sponsor
Tech Briefs Magazine - December 2022 - Cov1
Tech Briefs Magazine - December 2022 - Cov2
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Tech Briefs Magazine - December 2022 - 13b
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Tech Briefs Magazine - December 2022 - Cov3
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